Related Experiment Video

Updated: Oct 12, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.2K

Beam-quality improvement with a bio-inspired sunflower array for coherent beam combining

Jiali Liao, Wei Li, Yang Gao

    Applied Optics
    |November 22, 2021
    PubMed
    Summary

    Researchers developed a novel Fermat spiral array (FSA) for coherent beam combing (CBC). This bio-inspired design enhances beam quality and reduces far-field sidelobes compared to traditional regular arrays.

    More Related Videos

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces09:33

    Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

    Published on: June 7, 2019

    6.4K
    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating10:39

    Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating

    Published on: October 11, 2016

    9.8K

    Related Concept Videos

    Beams with Symmetric Loadings01:15

    Beams with Symmetric Loadings

    The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
    The M/EI...
    262
    Prismatic Beams: Problem Solving01:15

    Prismatic Beams: Problem Solving

    In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
    The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
    238
    Beams with Unsymmetric Loadings01:17

    Beams with Unsymmetric Loadings

    Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
    The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
    195
    Beams01:30

    Beams

    Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
    Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
    1.5K
    Shear on the Horizontal Face of a Beam Element01:16

    Shear on the Horizontal Face of a Beam Element

    To understand shear on the flat side of a prismatic beam element, consider the vertical and horizontal shearing forces, and the normal forces, acting on the element. The element's upper (U) and lower (L) sections, which are divided by the beam's neutral axis, are examined. The equilibrium of these forces is determined by applying the equilibrium equation, which helps identify the horizontal shearing force. This force is directly related to the bending moments and the cross-section's...
    314
    Design of Prismatic Beams for Bending01:23

    Design of Prismatic Beams for Bending

    The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
    427